3656660631000 has 128 divisors (see below), whose sum is σ = 12286379851200. Its totient is φ = 900101068800.

The previous prime is 3656660630989. The next prime is 3656660631109. The reversal of 3656660631000 is 1360666563.

It is a super-2 number, since 2×3656660631000² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46841265 + ... + 46919264.

Almost surely, 2^{3656660631000} is an apocalyptic number.

3656660631000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3656660631000 is an abundant number, since it is smaller than the sum of its proper divisors (8629719220200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3656660631000 is a wasteful number, since it uses less digits than its factorization.

3656660631000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93760566 (or 93760552 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 42.

The spelling of 3656660631000 in words is "three trillion, six hundred fifty-six billion, six hundred sixty million, six hundred thirty-one thousand".